Apparatus for forming tab-stock.



VF. M. CASE.

APPRQTUS FOR FORMING TAB STOCK'. APPucATmN FILED APR. l. 1914.

,l 19m., Y 4 Bamm Jan. 2, 1917.

4 SHEETS-SHEET l.

F'. m. CASE. Y APPARATUS FORV FURMIHG TAB STOCK.

' APPLICATIGN FILED AFR. l .1914.

'Patented Jan. 2,1917.

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ZIES'SE'S.. Y of@ F. m. CASE. APPARATUS FOR FORMING TAB STOCK.

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MPRATUS FOR FQBMING sB STOCK.

Mmcanon ruin APR. l. 1914.

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FRANCIS M. CASE, 0F ULEVELAND, OHIO, ASSIGNOB '.lO J. C. HUB,'0F CLE i vAPPARATUS FOB, FOBMING TAB-STOCK.

Specication of Letters Patent.

Application led April 1, 1914. Serial No. 828,879.

To all 'whomglt may concern.'

Beit known that I, FRANCIS M. CASE, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio,haveinvented certain new and useful Improvements in Apparatus for yForming Tab-Stock, of which the following heating Celluloid strips, oneabove the other with an amalgamating solution applied to one or more ofthe meeting surfaces, to suitable heated Vrolls which are adapted toforce the strips together and draw ,the same through'the feedingmechanism and at the same time raise the 'temperature of the strips to apoint where complete amalgamation between the same is effected, thefeeding mechanism and the parts being arranged so that twov wider stripsmay be amalgamated against the side faces of a relatively narrow mainstrip so as to form a tab stock comprising a main tab portion of threethicknesses and side plate portionsextending therefrom to form sideplate securing portions which are to be applied to the faces of thecard.

The invention may be further briefly summarized as consisting in theconstruction and combination of parts hereinafter set forth in thefollowing description, drawings and claims.

Referring to the drawings, Figure 1 is side elevation of the apparatus;Fig. 2 is a detail view; Fig. 3 is a longitudinal vertical section; Fig.4 is a side elevation of the feeding and preliminary heating device;Fig. 5 is a detail sectional view showing the connectionwith the heatingelement; Fig. 6 is a front elevation; Fig. 7 is a rear elevation; Fig. 8is a top plan view with parts broken away; Fig. 9 is a top plan view ofthe lower half of the preliminary heating and feeding device; and Fig.10 is a vertical section of this device taken upon the linecorresponding to the line 10-10 of Fig. 9 but through both halves of thepreliminary heater and feeder.

In carrying out the invention any preferred form and construction ofparts may be employed so long as they possess the necessarycharacteristics, but have shown k011e arrangement which is effective ino eration, and in such embodiment the ame comprises' side members 1.-and 2 held together by suitable cross frame members secured to the sidemembers in any suitable manner. Each of the side frame members 1 and 2is provided at the rear with a surfaced edge or face l3 for thereception of the bearlngs as will later appeal". Each frame member isalso provided with an opening 4. for a purposeto be described and avertlcal uideway 5 also for a purpose` to be descri ed. The otherfeatures of the frame members will be taken up in connection with thedescription' of the detail parts.

Secured to one of the frame members', preferably the member 2 is a gearcase 6 containing any suitable power transmission gearing, such forexample, as aworm wheel 7 and worm 8 indicated in dotted lines in thedrawings, the worm wheel being connected to a driving shaft 9 providedwith a driving pulley 10 and the former being connected to a countershaft 11 mounted in bearings 12 secured to the edge faces 3. This shaftis provided with a spur -pinion 13 meshing with a spur ear 14 in -turnmounted upon a roll. gear iving shaft 15 supported in bearings 16 uponthe frame. This shaft 15 is lprovided outside of the frame member 1 witha roll driving gear 17 which normally meshes with a roll driving gear 18of like size mounted upon an upper roll driving shaft 19 supported inbearings 20 secured to the faces 3 of the sideframe members. Mounted inthe lower ends of the guideways 5 formed in-the side frame members l and2 are bearing blocks 21 supported in the 'guideways by suitable screws21. These blocks support a lower roll driving shaft 22 which extendsacross between the two frames and carries upon it alower amalgamatingroll consisting of an inner sleeve member 23 having end flanges or webs24 provided with suitable openings 25, as shownv in Fig. 3, forventilation, Iand a heater coil supporting sleeve 26 having an outwardlyextending flange 274 'at each end adapted to be engaged by the outersleeve 28. Within the chamber between the sleeve 26l and flange 27 is aheating element comprising an insulating sleeve 29, a coil 30surrounding the'same and an outer insulating sleeve 31. This heatingelement is rammed Jamaica?.

formed in. this chamber before the outer sleevev 28 is applied. In-order to supply current to the coil 30 a lsuitable collector .structureis provided on each side of the amalgamating roll, and each of theselstructurescom rises an insulator ring 32 and a` metal co ector ring 33,theseparts be ing held together by suitable screws passing into thellange'27. The insulating ring 32 is provided with a suitable insulatmgtubular member 34 passing through an opening in the flange 27 andadapted to permit .the

passage of a lead from the collector rin to the coil 30j Contact.is'made with t ese sponding rings by suitable contact devices, and eacho f these devices comprises a fiber or other insulat' block 35 securedto the correaringl block of the amalgamating roll and carryin a metalcontact tube 36 preferably roundg and -supporting a carbon brush 37forcedy against the collector ring.

by a spring 38 'mounted in the tube and engaged at the ends opposite tothe carbon c ontact 37 by a contact strip 39 held against the rear endof the insulating block by suitable `screws 40. These contact strips areextended out to any suitable and convenient point and are then providedwith suitable binding posts 41 of any preferred structure. There 1s acollector ring and contact device foreach endof the two amalgamatingrolls.

In the ca se of the lower roll, however, the contacts arefarranged uponthe up y er surface of the bearing blocks 21, as 1s s own 1n Fig. 1.

Slidahly mounted in the guideways 5 of thel side frame members 1 and 2are upper amalgamating roll bearing blocks 42, which support an upperamalgamating roll driving, shaft 43 carrying a roll similar in allrespects to the lower roll and therefore need.-

' l ing no further detail description. In the case of this roll,however, the contacts for 45- pose 4of bringing the binding poststogether Springs the current are arranged below the bearing blocks 42,as shown in Fig. 1, for the purat a convenient point. Keyed or otherwisesecured to this shaft is an upper roll drivlng gear v44 meshing with thegear 18 mounted Vupon the shaft 19.

It is necessary that-the upper roll should have a tension toward theroller roll, and this'is accomplished' by means of a pair of 45, onearranged vbetween each of the bearing blocks 42 and a thrust block 46mounted in the guideway 5 and adapted to be adjustablyheld in positionby an adjusting screw 47 threaded into a clip 48 extendl I mg over thetop of the frame and having, in-

wardly extending projections 49 engaging in suitable recesses 50 in theframe members.

Each of these adjusting screws 47 is held in' I' place by a'check nut51. In the feeding of the' strips, as will later appear, it is. necesfsary lto open "the rolls, and this mechanism consists of a leverstructure having bifurcated portions 52 and 53 both Y-pivoted upon,

a rod 54 extending across the two frame members. The outer ends of thesetwo-arms `52 and 53 are connected by suitable link members..55 eachhaving a bearing portion 56 mounted upon the corresponding-proj ectedend of the shaft 43 of the upper amal-Y gamating roll. These bifurcatedportions 52 l and 53 unite atthe rear of the machine and are `connectedto a link, or bar 57 provided tion to any suitable manually operateddevice, preferably to a foot lever, not shown. In order to guide thelower end of this link,

.a bracket 59 is secured to the frame and extends out to a point invertical alinement with the upper pivot of the link 57 and is thereprovided with a pin 601 extending through a slot 61 arranged in thelink. It is obvious from the foregoing description that when the link 57is pulled down', the upper amalgamating roll will be raised against thetensiony of the springs 45.

The strips of celluloid to be operated upon 'i by the amalgamated rollsare fed by a combined preliminary heating, feeding and treatingmechanism, and this mechanism is with an eye 58 at its lower end forconnec-Y its upper surface and near each end thereof ,Y

with an upwardly extending web 66 having -a transverse guiding rib 67adapted for engagement in the corresponding recessof the upper guidingplate 62.I This member is also provided with preferably a cylindricalopenmg 68 extending longitudinally through the same and adapted toreceive a heating element', and 'since the heating elements of thispreliminary heating, feeding and treating mechanism are substantiallythe same,

the description of one ply to all.

Each heating element comprises a metal sleeve 69 preferably of brasshaving threaded, or otherwise secured in the end thereof, a head 70having a central opening 71 which receives an insulating sleeve 72provided at this point will ap- .with a flange 7 3' engaging on theoutside of the head 7 0.' Passing through the sleeve 72 is a screw 74with the head on the inside of the element and provided on the outsideofthe flange 73 with a nut 75. This screw and nut is therefore insulatedfrom the head 70 and 'the tube 69 and forms oneof the contacts for theelements.` Arranged on the inside of the tube 69 against the wallthereof is an insulating sleeve or tube 76 preferably of asbestos, andwithin this is a heating 4coil 77 arranged about an insulating core 78.One end of this coil is connected under the head of the screw 74 at oneend of the element, and the other end of they coil is connected underthe' other similar screw at the opposite end so that the current leadsinto the heating element at one end and at the.

ing element already described. It is also f provided on its uppersurface with a pair ofgrooves 83 Awhich are located in alinement withthe grooves 79 .and these grooves together form the guideway for theside plates of the tab stock. This upper intermediate heating andguiding member 80 is provided with a rearwardly extending'portion 84inclined downwardly and outwardly beyond the back of this mechanism andcut away at the center from front to back to form end flanges 85 whichare curved out to follow the periphery .of the upper amalgamating rollwhen the rolls are closed. The upper lface of this extension 84 betweenthe proJections 85 is provided with grooves 86 in alinement with thegrooves 79 and 83 and forming a continuation thereof.`

In order to hold the celluloid strips in the groove 86 an upper plate87, as shown in top plan in Fig. 8, is provided and this platecorresponds in cross section to the cross section of the` flanges 85.The upper intermediate heating and guiding member 80 is secured to alower intermediate heating and guiding member 88 having its parts ar-franged in opposition thereto, as shown in Fig. 10,and the meeting facesare provided with transverse grooves 89, shown in plan in Fig. 9, ,thesegrooves being less in width than the grooves 79 and 83 and arranged sothat the spacing between the grooves is the same in all cases wherebythe inner edges of the grooves 89 are in vertical' alinement with theinner edges of the grooves 79 and 83. These grooves 89 are for receivingthe intermediate celluloid strips of stock. This lower intermediateheating and member is provided with a heating element 90 similar to theother heating elements. Each-,of the extensions 84 of the intermediateheating and guiding members is provided with alongitudinally disposedrecess 91 andthese recesses form an opening for receiving the solutionappliance to be described. Theunder face of the lower intermediateheating lvand guiding member is provided with recesses 92 similar tothose referred to in connection with the corresponding upper members andthese receive the other Celluloid side plate portions of the tab stockand feed them in a similar manner against the intermediate stri'pof Athetab stock as will later appear. Coperating with this lower intermediateheating and guiding portion is a lower heating and guiding portion 93provided with a heating element 94 and suitable grooves 95 coperatingwith the recesses 92.` In order to facilitate. the entry of the stripsinto the severa-l grooves or openings, the lips thereof may be beveled,as shown at ets 97, 98 and 99 may be arranged on the face of the entireheating, feeding and guiding' element for supporting the stock inplacing it in the openings. In order to force all of the strips towardthe center so that the corresponding edge of all the three strips ofeach piece ofstock will be in vertical alinement, I provide the severalmembers at their meeting faces withsuitable recesses 100 for receivingpressure blocks 101 preferably round in configuration with the curvededge tangent to the axis of the slot or recess with which it coperates,and' each of these blocks is forced inward toward the slot, as shown inFig. 9, by a suitable spring 102 held in place by la screw or plug 103.vThere is one of these pressure blocks at substantially the for each slotor recess, and one on each side ofthe slots .which pass'through theexten- 4sions 84 of the intermediate heating and guiding mechanism.

The treating device comprises an upper plate member 104 and a lowerplatememrectangular shaped aperture, as shown at 106 in Fig. 9, for receivinga suitable wick or pad 107 for holding an amalgamating so- 96 in Fig.10, and suitable extending brack- -center of the several members formingthe g v main body portion of the heating mechanism ber.105,l both'beingprovided with a central I lution. Each pad is fed by suitable open- Yings 108 extending through the plate and leading to a: feed tube109,there being a feed tube for each plate, the feed tube ofone memberextending' out on one side ofthe machine,` and the feed tube for theother' member extending out on the opposite side. These plates at theirends engage suitable supporting strips 110 fastened between theintermediate heating and guiding members and they are yieldngly heldagainst these supporting strips by suitable springs 111 and bolts 112,which' pass through suitable openings in the two plates and throughopenings in the strips 110, there being-one of the springs 111 above theupper plate and one below the lower plate on the same bolt,

as shown, so that theseV plates are held together against the supportsand the wicks or pads are brought yieldingly into engagement witheachother. Solution is supplied to this treating device through suitabletubes 113 connected to a reservoir 114.

In feeding the strips to theA amalgamating rolls, it is necessary tohave a stop limit the inward movement of the celluloid strips while theyare being arranged ready for amalgamation, and this is taken careof byproviding a plate 115 at the rear of the machine and supporting it uponparallel link members 116 and 117, the links 117 atA the rear beingsecured to a shaft 118 extended out and provided with a crank arm 119connected by a link 120 with a bracket 121 secured to the link 57. Aspring 122 tends to pull this plate to the rear. This plate may beprovided with an eXtra strip 123 for filling up the "entire openingbetween the rolls.

In order to supply current to the several heating elements of thepreliminary h eating, feeding and treating mechanism, I secure aninsulating block 124, as shown in Fig. 4, to the end face of ythismechanism and provide this 'block with suitable openings 125 forreceiving the nut 75 of the contact screw 74, and these nuts projectwell through this block, as vshown in Fig. 5, the uppermost contact 75engaging a leaf contact126- sel l cured to the block and having a metaltongue 127. f This tongue engages a contact strip carried by aninsulating contact block128 secured to the machine in any suitablemanner near the end of this mechanism and secured to the blocks by asuitable binding screw 129 connected to one of the wires of theelectrical circuit. The two contact nuts' 75 of the intermediateelements engage acom mon leaf contact 130 secured to the block 124 andhavinga tongue 131 for engagement with a contact 132 held in place by abolt 133 forming a binding post. The lower element has its contactengaging a leaf contact 134 having a spring tongue 135 engaging thecontact strip 136 carried by the block 128 and secured in place by abolt137 forming abinding post.

The mechanism is utilized in the .following manner: Assuming thatcurrent is sup- Y plied to the preliminary heater either by' connectingto the binding posts 129 and 137 so that all of the heating elements areconnected in series, or by connecting one line to the binding' posts 129and 137 and the other line to the binding post 133 when the elementswill be connected in multiple, and further assuming that the current is.led

to the binding post 41 so that the heatingA elements in theamal'gamating rolls are supplied with current, and still furtherassuming that these elements have been subjected to current for asuilicient length of time to heat the parts, the operator shifts thelink 57 causing the upper roll to be elevated.

previously heated. The middle strip in passing through the severalparts, however, has been moistened, with a solution'` from the pads 107and by the action of the heat has been softened on its surface, so thatIwhen the amalgamating rolls press the three strips together and actupon the same with their own heat and with pressure amalgamation takesplace, and. the;I three strips are-bound together forming a homogeneoustab stock with a solid portion comprising the three strips and 'withlateral extensions which form side plates for engaging the card afterthe tabs are cut from the stock.

Having described-my invention, I claim 1. Apparatus for formingcelluloid tab stock, comprising a guide for lthe central body strip,means for applying a solution to both sides of the body strip, means forguiding side plate portions into. position upon the opposite facesof themain body strip, and means for applying pressure and heat to the severalstrips to amalgamate `the same. 1

2. Apparatus 4for forming celluloid tab stock, vcomprising means forguiding several strips into contact with each other, means for applyinga solution between the strips,

means for heating the strips before they contact with each other, and.means for applyingv pressure and heat to the several contactin strips toamalgamate the same.

3. apparatus for forming tabA stockv comprising means for feeding aplurality of strips of celluloid, means for applying an amalgamatngsolution between .the strips, a pair of pressure rolls, meansnormally'tending to force said rolls together, means for brlnging abouta relative movement of said rolls to separate the same, and

-a gage for the strips adapted to enter be? tween the rolls whenseparated.

4. An apparatus for forming tab stock comprising means for feedingaplurality of strips of celluloid, means for applying `an Vamalgamatingsolution between the strips,

an amalgamating roll, another amalgamating roll, means for driving saidrolls, means for moving one of said rolls bodily with re' spect to theother, and a gage actuated by said roll moving means and adapted toenter the space between said rolls when separated and form a stop forthe strips.

5. An apparatus for forming celluloid tab stock comprising means foramalgamating the same, a vfeeding mechanism for the strips andcomprlslng a`device having a plurality of separated openings one foreach Y strips comprising a, device having a plurality ofseparatedguiding openings arranged in alinement so as to cause thestrips to be fed one upon the other, and a solution applying devicearranged between adjacentv strips and adaptedA to feed amallgamatingsolution thereto.

7 An apparatus for forming celluloid tab stock comprising means foramalgamating the same, and feeding. mechanism for the strips comprisinga device having a guiding opening for receiving the main body strip ofthe 'stock and another opening spaced therefrom for receiving a sidestrip, and a solution applying device arranged in the device between theopening for the main body strip and the opening for the side Astrip andadapted to apply solution to the face of the main body strip.

8. An apparatus for forming celluloid tab 'stock comprising means foramalgamatingl the same, and feeding mechanism for the strips comprisinga device having an opening for receiving the main body strip, and anopening on each side thereof spaced therefrom for receiving theside-plate strips, all of said openings being in vertical alinement tocause the strips to be fed one against the other, and a solution feedindevice arranged on each side of the body strlp and between it and thesidestrips.

9. An apparatus for forming celluloid tab stock comprisin means foramalgamating the same, and ceding mechanism for theV str1ps comprising adevice havlng an opemn g for receiving the main body strip, and anopemng on. each side thereof spaced therefrom for receiving the side`plate strips, all of l .sald openlngs being in vertical alinement tocause the strips to be fed one against the other, and a solution feedingdevice arranged on'each side of the body strip and between it and theside strips, each solution device comprising a plate havinga pad,n1eansfor applying amalgamating solution thereto, and means for bringing saidpads against the sides of the strip.

l0. An apparatus for forming celluloid tab stock comprising means foramalgamating the same, and feeding mechanism for the strips comprising adevice having an opening for receiving the main body strip, and anopening on each side thereof and spaced therefrom for receiving the sideplate strips, alinement to cause the strips to be fed one against theother, a solution feeding device arranged on each side of the body stripand between it and the Side strips, and means arranged in said devicefor forcing the corresponding edges of the strips against the sides oftheir opening.

11. ln apparatus for forming celluloid tab stock comprising means foramalgamating the same, and feeding mechanism for the strips comprising adevice having an opening for receiving the main body strip, and anopening -on each side thereof and spaced therefrom for receiving theside plate strips, all of said openings being in vertical alinement tocause the strips to be fed one against the other, a solution feedingdevice arranged on each side of the body strip and between it and theside strips, guiding blocks arranged in the device one cooperating witheach opening and adapted to engage the edge of the stri and force theopposite edge against the wa l of the opening, and means for yieldinglyforcing said blocks in the proper direction. 4

In testimony whereof I aiiix my signature in presence of two witnessesas follows.

FRANCIS M, CASE.

Witnesses:

C. H. TREsoH, G. 0. FARQUHARsoN.

all of said openings being in vertical

